传统的生物氧化预处理过程温度控制算法参数整定过程复杂，且受干扰后会使控制漂离最佳状态。针对这一问题，以某金矿生物氧化预处理工艺为研究背景，分析了氧化槽内生物氧化反应热、冷/水阀循环热、氧化槽与外界发生热传递的流失热之间的平衡关系，构建了以冷/热水调节阀开度为控制目标，以环境温度、矿浆温度、冷/热水水温为状态参数的温度控制模型。经过验证，该模型有效地解决了传统温度控制系统存在的问题，实现了氧化槽温度的稳定控制。
The parameter tuning process of temperature control algorithm in conventional biological oxidation pretreatment process is complicated. The control effect of the temperature control algorithm is easily drifted away from the best state after being interfered. A bio-oxidation pretreatment process was used as research background. The bio-oxidation reaction heat of oxidation tank, the cycle heat of hot/cold water valve and the balance of heat loss between oxidation tank and the outside world were analyzed. Through the analysis a temperature control model was established. Hot/cold water valve opening degree is the control target in the proposed model. Ambient temperature, slurry temperature and hot/cold water temperature are the state parameters. The results of simulation proved that the model has effectively solved the traditional problems of temperature control system and achieved a stable temperature control of the oxidation tank.
参考文献
| [1] | 吕重安,安娟.生物氧化预处理提金新工艺研究[J].湖南有色金属,2010(01):28-30. |
| [2] | 韩晓光;郭普金;具滋范 .生物氧化提金工艺应用研究与生产实践[J].黄金,2008,27(11):38-41. |
| [3] | Qingcui Li;Dengxin Li;Fangjun Qian .Pre-oxidation of high-sulfur and high-arsenic refractory gold concentrate by ozone and ferric ions in acidic media[J].Hydrometallurgy,2009(1/2):61-66. |
| [4] | 陈勃伟,温建康.生物冶金中混合菌的作用[J].金属矿山,2008(04):13-17,36. |
| [5] | 姚国成,阮仁满,温建康.生物冶金常用浸矿菌种及改良育种的基本方法[J].金属矿山,2002(11):26-29. |
| [6] | 温建康,阮仁满,邹来昌,陈景河.紫金山铜矿生物浸出过程酸平衡分析研究[J].稀有金属,2008(03):338-343. |
| [7] | 刘子龙,秦晓鹏.影响生物氧化提金工艺的主要因素与措施[J].黄金科学技术,2010(02):58-60. |
| [8] | 訾建威 .噬温菌氧化高砷金矿的脱砷试验研究[D].沈阳:东北大学,2004. |
| [9] | 金世斌.难处理金精矿生物氧化预处理工艺的工业应用现状及其工艺因素分析[J].黄金,2001(10):28-31. |
| [10] | 王胜,张强,张鸿.稀疏植被地表反照率及土壤热传导率特征研究[J].中国沙漠,2008(01):119-124. |
| [11] | 傅传国,王广勇,王玉镯.火灾作用下钢筋混凝土框架节点温度场分析[J].山东建筑大学学报,2009(01):1-8,17. |
| [12] | Huang Z F;Tan K H;Phng G H .Axial restraint effects on the fire resistance of composite columns encasing I-section steel[J].Journal of Constructional Steel Research,2007,63(04):437-447. |
| [13] | 高丙朋,南新元,魏霞.基于迭代LS-SVM生物氧化提金预处理工艺参数优化算法的研究[J].贵金属,2012(02):40-43. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%